Patient Relevant Outcomes Improvement Program in High Risk Hormone Receptor Positive (HR+) Breast Cancer
PROSPER
1 other identifier
observational
200
1 country
1
Brief Summary
The goal of this observational study is to evaluate how persistently patients with high-risk early breast cancer take abemaciclib 6 months after therapy start. To this end, researchers will perform a retrospective analysis of therapy data.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 19, 2026
CompletedFirst Submitted
Initial submission to the registry
April 9, 2026
CompletedFirst Posted
Study publicly available on registry
April 15, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 1, 2027
April 15, 2026
April 1, 2026
6 months
April 9, 2026
April 9, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Abemaciclib persistence rate
Abemaciclib persistence rate (defined as ongoing abemaciclib therapy)
6 months after therapy start
Study Arms (1)
High-risk HR+/HER2- early breast cancer patients
High-risk HR+/HER2- early breast cancer patients under abemaciclib therapy
Eligibility Criteria
Patients will be selected from up to 30 study sites across Germay. Sites will be selected from certified breast cancer centers that have experience providing adjuvant treatment to breast cancer patients.
You may qualify if:
- Femal patients age 18 or older at time of informed consent
- Confirmed diagnosis of HR+/HER2- early breast cancer (no distant metastasis)
- Prescribed abemaciclib therapy according to the Summary of Product Characteristics (SmPC)
- Abemaciclib therapy occured between January 1st, 2023 and June 30th, 2025
You may not qualify if:
- Locally advanced or metastatic breast cancer
- Male patients
- Patients with contraindication(s) for abemaciclib therapy according to SmPC
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Institut fuer Frauengesundheitlead
- Lilly Deutschland GmbH Germanycollaborator
- AGO-B Breast Study Groupcollaborator
Study Sites (1)
Department of Obstetrics and Gynaecology, Uniklinikum Erlangen
Erlangen, Bavaria, 91054, Germany
Study Officials
- STUDY CHAIR
Peter A. Fasching, Prof. Dr. med.
Department of Obstetrics and Gynaecology, Uniklinikum Erlangen
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 9, 2026
First Posted
April 15, 2026
Study Start
February 19, 2026
Primary Completion (Estimated)
September 1, 2026
Study Completion (Estimated)
March 1, 2027
Last Updated
April 15, 2026
Record last verified: 2026-04